I have a few questions and need some guidance. I have a Nakamichi set up with the 7A II power amp and CA7 II pre-amp. I have four JBL 4311 studio monitors. Is it proper if I wire-nut the speaker channels together and pig tail a single to the proper channel on the amp, or will this hurt the amp or the speakers? Or, should I run them through a selector box instead capable of handling higher amp watts? Someone told me that the four speakers change the oms from 8 to 2 and another said that four speakers through a Nak amp blew a tweeter on him.